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Dysgenesis — can be used for:*As a synonym for agenesis referring to the failure of an organ to develop during embryonic growth and development.*To refer to a population undergoing artificial selection, where selection is producing a population considered… … Wikipedia

Dysgenesis — Dys*gen e*sis, n. [Pref. dys + genesis.] (Biol.) A condition of not generating or breeding freely; infertility; a form of homogenesis in which the hybrids are sterile among themselves, but are fertile with members of either parent race. [1913… … The Collaborative International Dictionary of English